Expanding device for use in making wash-boilers



(No Model.)

G. W. ANDERSON & G. M. HUNTINGTON. EXPANDING DEVICE FOR USE IN MAKING WASH BOILERS.

No. 485,078. Patented 001:. 25, 1892.

UNITED STATES PATENT OFFICE.

GEORGE \V. ANDERSON AND GEORGE M. IIUN'JINGTON, OF LADOGA, INDIANA.

EXPANDING DEVICE FOR USE IN MAKING WASH-BOILERS.

SPECIFICATION forming part of Letters Patent No. 485,078, dated October 25, 1892.

Application filed November 21, 1891. Serial No. 412,690. (No model.)

all whom it may concern.- end, between which the inner end of the other Be it known that we, GEORGE ANDER- bar is mounted and adapted to slide. Said SON and GEORGE M. HUNTINGTON, citizens of other bar 13' preferably formed with a rack 55 the United States, residing at Ladoga, in the on its upper face, and a circular or segmental county of Montgomery and State of Indiana, rack 11 is pivoted between the cars 11 and have invented certain new and useful Imadapted to engage therewith. Said circular provements in Expanding Devices for Use in rack B is provided with a shank or stem on the Manufacture of ash-Boilers, of which its upper side, theupper end of whichisscrew- Go the following is a specification. threadedand on which a handle Z1 is mounted,

[O In the manufacture of wash-boilers, waterwhich handle is formed with a central screwheaters, and such like vessels, usually eomthreaded perforation which engages with said posed of copper bottoms and tin sides or other screw-threaded end, thereby adapting said suitable sheet-metal parts, the bottom and handle to be moved up and down on said 65 sides are ordinarily made separate and aftershank. Interposed between the lower end of 15 ward fitted together. It is necessary in such said handle and the ears I) is a collar b, with manufacture to force outthe sides of the body an enlarged and concave lower face adapted and hold them into engagement with the to impinge when forced down againstthe upflange around thebottomwhilebeingpinned per edges of the cars 11 to secure the parts in 70 or secured together; and our present inventhe adjusted position. The clamping-jaws I) tion consists in an improved construction of Z) are preferably made of springy material, device for this purpose, which is light and which will permit them to bend back to fit convenient to use and inexpensive in conagainst uneven or curved surfaces when destruction, all as will be hereinafter more parsired, or, as will be readily understood, they 75 ticularly described and claimed. may be made of any form or curvature desired Referring to the accompanying drawings, instead of straight; but wopreferto make them which are made a part hereof, and on which normally straight and of material of suffisimilar letters of reference indicate similar cient elasticity to permit them to adjust themparts, Figure 1 is a top or plan view of awashselves against whatever surfaces they are 80 boiler with our improved device for expandforced into contact with.

ing the sides therein in the position it occu- The operation of our said invention is as pies while in use; Fig. 2, a central transverse follows: It being desired to secure a body into section through said boiler and expanding the bottom of a boiler by pinning or any device; and Fig. 3, a side elevation of our in1- other process, said body is fitted within the 85 proved expanding device, different positions upturned flange of said bottom and the flanges being indicated by whole and dotted lines. interlocked. The expanding device is then In said drawings the portions marked A A placed within the boiler, the parts being so represent the bottom and body of the washadjusted that it will slip in loosely and the boiler, respectively, and 13 i)" B the several handle Z1 thrown back, which operates the go parts of our improved expanding device. circular rack to throw the bar [3 forward and The wash-boiler shown is or may be of any expand the sides of said body to the position ordinary or desired construction, being only desired. Said sides being forced out to the illustrated to better illustrate the use of our extent desired, said handle b is given a turn expanding device. The bottom A is formed on the shank, which by reason of the screw- 5 with the flange around its edge, as usual, and threaded connection operates to force the colthe body A is fitted within said flange, with lar 0 down tightly upon the upper edges of which a flange on its lower edge interlocks, the ears I) with suilicicnt force to hold said and is held in close contact therewith by said parts while being secured together, which becxpanding device. The expanding device ing accomplished the device is removed by 10$ consists of the two bars I 13, having elampsimply turning back the handle b and throwing-jaws i) b, respectively, on the outer ends. ing it forward to release the clamping-jaws One of said bars (the bar B, as shown) is profrom the sides. vided with ears I) on each side near its inner Having thus fully described our said invention, What we claim as new, and desire to secure by Letters Patent, is-

1. An expanding device for use in the manufactu re of wash-boilers, &e., consisting of two bars, each carrying a clamping-jaw upon its outer end, the inner ends of which are formed to slide one within or upon the other, and a lever pivoted to one and arranged to engage with the other for securing the desired adjustment, the handle of said lever being adjustable toward or from said bars, whereby it may be forced to impinge upon one to hold said parts in the desired adjustment, substantially as set forth.

2. In an expanding device for use in the manufacture of wash-boilers, 600., the co1nbination of the two parts B and B, each having a clamping-jaw upon its outer end, the part B being provided with the ears 1) on its sides near its inner end, the inner end of the bar B, formed with a rack on its upper face and mounted between said ears, the rack B pivoted between said ears and arranged to engage with said rack on the bar B, the shank extending up from said rack with a screwthreaded upper end, and a handle provided with a screwthreaded perforation mounted on said shank, and the collar Z)", with its lower face arranged to engage with the upper edges of the ears b all substantially as described, and for the purpose as specified.

In Witness whereof we have hereunto set our hands and seals, at Ladoga,lndiana, this 7th day of November, A. 1). 1891.

GEORGE S. HARVEY, JAMES F. HARVEY. 

